It is recommended, that you take the time to read through the above blog posts and if interested, I recommend looking through the rest of '''Gaurav Chaudhary's'''<ref>[http://www.circuitvalley.com/ Gaurav Chaudhary's Circuit Valley - Microcontroller Projects Blog]</ref> posts.

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It is recommended, that you take the time to read through the above blog posts and, if interested, I recommend looking through the rest of '''Gaurav Chaudhary's'''<ref>[http://www.circuitvalley.com/ Gaurav Chaudhary's Circuit Valley - Microcontroller Projects Blog]</ref> posts too.

Warnings

While most of these circuits may interface directly to the RPi, the use of a buffered interface (such as the one supplied by the Gertboard) is recommended which will help protect against damage. Alternatively, experiment with one of the Alternative Test Platforms.

Extreme caution should be exercised when interfacing hardware at a low level, you may damage your RPi, your equipment and potentially yourself and others. Doing so is at your own risk!

This would provide a useful standard for connecting an LCD display to the RPi using up just 2 GPIO pins, allowing easy debugging even for a setup which otherwise does not use a display.

Clearly there is no sense in replicating everything here, so the tutorial will focus mainly on the second part and also (when possible) how to translate this onto the RPi.

It is recommended, that you take the time to read through the above blog posts and, if interested, I recommend looking through the rest of Gaurav Chaudhary's[2] posts too.

Note:
Until RPi devices are available, I can not confirm this will work on a real RPi.
For now, I shall be using the TI LaunchPad (see Alternative Test Platforms
for details) to test the hardware on (as it is cheap and the logic levels similar).

The Hardware

Theory

Circuit 1 -

Circuit 2 -

The Software

While the RPi is not available, I can only confirm the TI LaunchPad code works for me.